Full Closure at 3rd Avenue and Atwood Street for the Railroad Quiet Zones Project
March 30, 2026
Map of Traffic Impacts and Road Closures
This map shows current, significant traffic closures submitted to and approved by the City of Longmont. Closures may be due to municipal projects, maintenance/improvement activities and/or special events.
Not all cone zones are included on this map since some may have a short duration or be in an area of minimal impact. If you have any questions, please contact Transportation.
Additional Resources
Longmont Trail Status Map
Check the status of Longmont Trails in addition to park playgrounds and restrooms.
Closures & Construction
Visit Boulder County's website to learn about construction-related travel impacts in the county.
COTrip
Plan your route by visiting Colorado Department of Transportation's CO Trip website.
Traffic Impacts and Road Closures
The traffic-related news alerts listed below provide a highlight of the most recent traffic closures submitted to and approved by the City of Longmont.
